Henry s



- (No Model.)

H. s. PPEI L. RAILROAD OR OTHER SIGNAL.

Patented Sept. 14, 1886.

-QW24ESSES' x ogrupher. wuhingnm, 0 0.

ing on an enlarged scale.

UNITED STATES PATENT OFFICE.

HENRY S. PFEIL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO RICHARD M.POPHAM, OF SAME PLACE.

RAJLROAD OR OTHER SIGNAL.

SPECIFICATION forming part of Letters Patent No. 349,285, datedSeptember 14, 1886 Application filed October 8, 1885. Serial No.179,360. (No model.)

.T 0 all whom it may concern:

Be it known that'I, HENRY S. PFEIL, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful 1mprovement in Railroad and otherSignals, which improvement is fully set forth in the followingspecification and accompanying drawings, in which Figure 1 represents aside elevation of a part of a railroadsignal having my invention appliedto it. Figs. 2 and 3 represent views of opposite faces of the portion ofa railroadsignal embodying my invention, the same be- Fig. 4-.represents a section in line 00 m, Fig. 1, on an enlarged scale. Fig. 5represents a view of a detached portion of Fig. 4 on an enlarged scale.

Similar letters of reference indicate corresponding parts in the severalfigures.

My invention consists of means for preventing the breakage of the lensof semaphore, railroad, and other signals, as will be hereinafter fullyset forth.

Referring to the drawings, A represents the arm of a railrOadsignal, andB represents the lens which is secured thereto, said signal beingconstructed, supported, and operated in wellknown manner.

0 represents a packing, which is interposed between the periphery of thelens B and adjacent portion of the arm A, it being noticed that theperipheral portion of the lens is set in a recess in said arm andretained by an annulus or ring, D, which is seemed to the arm andembraces the lens near the periphery thereof. The packing 0 consists ofa band, C, which is in contact with the periphery of the lens, andflanges O C", which embrace opposite sides of the peripheral portion ofthe lens, so

that the contiguous portions of the arm and the annulus D are in contactwith the packing, the latter being composed of soft rubber, felt, paper,or other pliable or flexible material, the object whereof is to providea cushion for the lens at the place of its connection and support,whereby it will not be injuriously affected or broken when the signal isoperated or moved, such operation or motion being often abrupt andharsh, as is well known. The packing also prevents breakage of the lensshould the ring D, when tightened, exert severe pressure thereon.

In order to increase the yielding or cushion nature of the packin I formthe same with a corrugated surface, as more particularly seen in Figs.'-.L and 5, so that when the package is compressed by the ring D itretains sufficient elasticity to prevent dezul-pressure of the ring andarm on the lens.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, 'is g l. The signal-arm A, having lens B, incombination with pliable packing (3, formed of the peripheral band 0 andside flanges, C O, and the annulus D, substantially as and for thepurpose set forth.

2. Packing for the lens of a signal, formed of co rrugated material ofpl i able nature, subst antially as described.

H. S. PFEIL.

\Vitnesses:

JOHN A. WIEnERsHEIM, A. P. GRANT.

